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CDMA/IS-95 >
IS-95 Add 8-Bit Tail Bits for Initializing Convolutional Coder (CCTAIL95)

IS-95 Add 8-Bit Tail Bits for Initializing Convolutional Coder (CCTAIL95)

Property	Description	Units	Default	Range/Type
FDR	Frame Data Rate	Hz	1200	[1200Hz, 9600]/Real
RIN	Input impedance	Ohm	Inf	(0, Inf]/Real
ROUT	output Impedance	Ohm	0	[0, Inf)/Real
Ports
Input	Input signal (real)
Output	Output signal (real)

Notes

1. This model adds the IS-95 tail bits to initialize the convolutional coder (Reference 1). Because eight tail bits have been added for 9600 Hz, 88 bits for 4800 Hz, 40 bits for 2400 Hz, 16 bits for 1200 Hz, then the ratio of the output bit rate to input bit rate is 192/184, 96/88, 48/40, 24/16 for 9600Hz, 4800Hz, 2400Hz, and 1200Hz respectively.

Netlist Form

CCTAIL95:Name n1 n2 FDR=val [Rin=Val] [Rout=Val]

Netlist Example

CCTAIL95:1 1 2 FDR=9600Hz

References

1. Mobile-Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular System” TIA/EIA/IS-95-A, May 1995.

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